exo 1
sqlplus "raban@(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(Host=lorien.arda.lan)(Port=1521))(CONNECT_DATA=(SID=ORCLIUT)))"
EXEC DBMS_STATS.GATHER_TABLE_STATS(USER, 'CLIENT')
select TABLE_NAME, BLOCKS, EMPTY_BLOCKS, AVG_SPACE, CHAIN_CNT ,
AVG_ROW_LEN, SAMPLE_SIZE, LAST_ANALYZED
FROM user_tables
WHERE TABLE_NAME='CLIENT';
exo 2
select * FROM COMMANDE3 WHERE REFERENCE = 008084;
SET AUTOTRACE ON
Execution Plan
----------------------------------------------------------
Plan hash value: 1042069817
-------------------------------------------------------------------------------
| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time |
-------------------------------------------------------------------------------
| 0 | SELECT STATEMENT | | 1 | 164 | 6 (0)| 00:00:01 |
|* 1 | TABLE ACCESS FULL| COMMANDE3 | 1 | 164 | 6 (0)| 00:00:01 |
-------------------------------------------------------------------------------
Statistics
----------------------------------------------------------
0 recursive calls
0 db block gets
23 consistent gets
0 physical reads
0 redo size
513 bytes sent via SQL*Net to client
41 bytes received via SQL*Net from client
2 SQL*Net roundtrips to/from client
0 sorts (memory)
0 sorts (disk)
1 rows processed
rien ne change
exo3
SELECT ID,
ROWID,
DBMS_ROWID.ROWID_RELATIVE_FNO(rowid) FICHIER,
DBMS_ROWID.ROWID_BLOCK_NUMBER(rowid) BLOC,
DBMS_ROWID.ROWID_ROW_NUMBER(rowid) NUMLIGNE
FROM COMMANDE3
WHERE id = 10;
ID ROWID FICHIER BLOC NUMLIGNE
---------- ------------------ ---------- ---------- ----------
1 AAAzOFAAIAAAPz4AAA 8 64760 0
2 AAAzOFAAIAAAPz4AAB 8 64760 1
3 AAAzOFAAIAAAPz4AAC 8 64760 2
4 AAAzOFAAIAAAPz4AAD 8 64760 3
5 AAAzOFAAIAAAPz4AAE 8 64760 4
6 AAAzOFAAIAAAPz4AAF 8 64760 5
7 AAAzOFAAIAAAPz4AAG 8 64760 6
8 AAAzOFAAIAAAPz4AAH 8 64760 7
9 AAAzOFAAIAAAPz4AAI 8 64760 8
10 AAAzOFAAIAAAPz4AAJ 8 64760 9
11 AAAzOFAAIAAAPz4AAK 8 64760 10
ID ROWID FICHIER BLOC NUMLIGNE
---------- ------------------ ---------- ---------- ----------
12 AAAzOFAAIAAAPz4AAL 8 64760 11
13 AAAzOFAAIAAAPz4AAM 8 64760 12
14 AAAzOFAAIAAAPz4AAN 8 64760 13
15 AAAzOFAAIAAAPz4AAO 8 64760 14
16 AAAzOFAAIAAAPz4AAP 8 64760 15
17 AAAzOFAAIAAAPz4AAQ 8 64760 16
18 AAAzOFAAIAAAPz4AAR 8 64760 17
19 AAAzOFAAIAAAPz4AAS 8 64760 18
20 AAAzOFAAIAAAPz4AAT 8 64760 19
21 AAAzOFAAIAAAPz4AAU 8 64760 20
22 AAAzOFAAIAAAPz4AAV 8 64760 21
ID ROWID FICHIER BLOC NUMLIGNE
---------- ------------------ ---------- ---------- ----------
23 AAAzOFAAIAAAPz4AAW 8 64760 22
24 AAAzOFAAIAAAPz4AAX 8 64760 23
25 AAAzOFAAIAAAPz4AAY 8 64760 24
26 AAAzOFAAIAAAPz4AAZ 8 64760 25
27 AAAzOFAAIAAAPz4AAa 8 64760 26
28 AAAzOFAAIAAAPz4AAb 8 64760 27
29 AAAzOFAAIAAAPz4AAc 8 64760 28
30 AAAzOFAAIAAAPz4AAd 8 64760 29
31 AAAzOFAAIAAAPz4AAe 8 64760 30
32 AAAzOFAAIAAAPz4AAf 8 64760 31
33 AAAzOFAAIAAAPz4AAg 8 64760 32
ID ROWID FICHIER BLOC NUMLIGNE
---------- ------------------ ---------- ---------- ----------
34 AAAzOFAAIAAAPz4AAh 8 64760 33
35 AAAzOFAAIAAAPz4AAi 8 64760 34
36 AAAzOFAAIAAAPz4AAj 8 64760 35
37 AAAzOFAAIAAAPz4AAk 8 64760 36
38 AAAzOFAAIAAAPz4AAl 8 64760 37
39 AAAzOFAAIAAAPz4AAm 8 64760 38
40 AAAzOFAAIAAAPz4AAn 8 64760 39
41 AAAzOFAAIAAAPz4AAo 8 64760 40
42 AAAzOFAAIAAAPz4AAp 8 64760 41
43 AAAzOFAAIAAAPz4AAq 8 64760 42
44 AAAzOFAAIAAAPz4AAr 8 64760 43
ID ROWID FICHIER BLOC NUMLIGNE
---------- ------------------ ---------- ---------- ----------
45 AAAzOFAAIAAAPz4AAs 8 64760 44
46 AAAzOFAAIAAAPz4AAt 8 64760 45
47 AAAzOFAAIAAAPz4AAu 8 64760 46
48 AAAzOFAAIAAAPz4AAv 8 64760 47
48 rows selected.
Execution Plan
----------------------------------------------------------
Plan hash value: 2528279197
--------------------------------------------------------------------------------
------
| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time
|
--------------------------------------------------------------------------------
------
| 0 | SELECT STATEMENT | | 48 | 1200 | 2 (0)| 00:0
0:01 |
| 1 | INDEX FAST FULL SCAN| SYS_C00136317 | 48 | 1200 | 2 (0)| 00:0
0:01 |
--------------------------------------------------------------------------------
------
Note
-----
- dynamic sampling used for this statement
Statistics
----------------------------------------------------------
462 recursive calls
0 db block gets
250 consistent gets
39 physical reads
0 redo size
2014 bytes sent via SQL*Net to client
74 bytes received via SQL*Net from client
5 SQL*Net roundtrips to/from client
43 sorts (memory)
0 sorts (disk)
48 rows processed
ROWID : id de l'index
adresse physique : AAAzOFAAIAAAPz4AAJ
SELECT *
FROM Commande3
WHERE rowid = 'AAAzOFAAIAAAPz4AAJ';
ID CLIENT_ID DATE_ACHA
---------- ---------- ---------
REFERENCE
--------------------------------------------------------------------------------
10 16 13-JAN-19
004616
Execution Plan
----------------------------------------------------------
Plan hash value: 3456971742
--------------------------------------------------------------------------------
--------
| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Ti
me |
--------------------------------------------------------------------------------
--------
| 0 | SELECT STATEMENT | | 1 | 176 | 1 (0)| 00
:00:01 |
| 1 | TABLE ACCESS BY USER ROWID| COMMANDE3 | 1 | 176 | 1 (0)| 00
:00:01 |
--------------------------------------------------------------------------------
--------
Statistics
----------------------------------------------------------
1 recursive calls
0 db block gets
1 consistent gets
0 physical reads
0 redo size
513 bytes sent via SQL*Net to client
41 bytes received via SQL*Net from client
2 SQL*Net roundtrips to/from client
0 sorts (memory)
0 sorts (disk)
1 rows processed
block : 64760 non
Exo4
CREATE INDEX ix_reference ON COMMANDE3(REFERENCE);
SELECT REFERENCE
FROM COMMANDE3
WHERE REFERENCE = 008084;
REFERENCE
--------------------------------------------------------------------------------
008084
Execution Plan
----------------------------------------------------------
Plan hash value: 88607570
--------------------------------------------------------------------------------
-
| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time
|
--------------------------------------------------------------------------------
-
| 0 | SELECT STATEMENT | | 1 | 129 | 1 (0)| 00:00:01
|
|* 1 | INDEX FULL SCAN | IX_REFERENCE | 1 | 129 | 1 (0)| 00:00:01
|
--------------------------------------------------------------------------------
-
Predicate Information (identified by operation id):
---------------------------------------------------
1 - filter(TO_NUMBER("REFERENCE")=008084)
Note
-----
- dynamic sampling used for this statement
Statistics
----------------------------------------------------------
4 recursive calls
0 db block gets
26 consistent gets
0 physical reads
0 redo size
340 bytes sent via SQL*Net to client
41 bytes received via SQL*Net from client
2 SQL*Net roundtrips to/from client
0 sorts (memory)
0 sorts (disk)
1 rows processed
il y a l'index au lieu du tableau
DROP INDEX ix_reference;
CREATE INDEX ix_reference ON COMMANDE3(DATE_ACHAT, REFERENCE);
SELECT DATE_ACHAT, REFERENCE
FROM COMMANDE3
WHERE REFERENCE = 008084;
DATE_ACHA
---------
REFERENCE
--------------------------------------------------------------------------------
11-JAN-19
008084
Execution Plan
----------------------------------------------------------
Plan hash value: 88607570
--------------------------------------------------------------------------------
-
| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time
|
--------------------------------------------------------------------------------
-
| 0 | SELECT STATEMENT | | 1 | 138 | 1 (0)| 00:00:01
|
|* 1 | INDEX FULL SCAN | IX_REFERENCE | 1 | 138 | 1 (0)| 00:00:01
|
--------------------------------------------------------------------------------
-
Predicate Information (identified by operation id):
---------------------------------------------------
1 - filter(TO_NUMBER("REFERENCE")=008084)
Note
-----
- dynamic sampling used for this statement
Statistics
----------------------------------------------------------
85 recursive calls
0 db block gets
64 consistent gets
0 physical reads
0 redo size
404 bytes sent via SQL*Net to client
41 bytes received via SQL*Net from client
2 SQL*Net roundtrips to/from client
0 sorts (memory)
0 sorts (disk)
1 rows processed
SELECT DATE_ACHAT FROM COMMANDE3 WHERE REFERENCE = '008084';
DATE_ACHA
---------
11-JAN-19
Execution Plan
----------------------------------------------------------
Plan hash value: 88607570
--------------------------------------------------------------------------------
-
| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time
|
--------------------------------------------------------------------------------
-
| 0 | SELECT STATEMENT | | 1 | 138 | 1 (0)| 00:00:01
|
|* 1 | INDEX FULL SCAN | IX_REFERENCE | 1 | 138 | 1 (0)| 00:00:01
|
--------------------------------------------------------------------------------
-
Predicate Information (identified by operation id):
---------------------------------------------------
1 - access("REFERENCE"='008084')
filter("REFERENCE"='008084')
Note
-----
- dynamic sampling used for this statement
Statistics
----------------------------------------------------------
5 recursive calls
0 db block gets
26 consistent gets
0 physical reads
0 redo size
342 bytes sent via SQL*Net to client
41 bytes received via SQL*Net from client
2 SQL*Net roundtrips to/from client
0 sorts (memory)
0 sorts (disk)
1 rows processed